Ventilator



NW. 2, 1948. H. w. LIT LE 2,452,941

VENTILATOR Filed Nov. 29, 1945 I 31mm Howard WLil'l'le Patented Nov. 2, 1948 UNITED STATES PATIENT OFFICE,

VENTILATOR Howard W. Little, near Canton, Ohio Application November 29, 1945, Serial No. 631,612 (o1. 9s 68) Claims. 1

The invention relates to ventilators, and more particularly to a collapsible, portable ventilator especially adapted for use upon tents and other portable structures.

It is an object of the invention to provide a collapsible ventilator adapted to be detachably mounted upon a tent or other structure.

Another object is to provide a ventilator of this type which, owing to its flexible construction, can be blown by the wind so as to create a suction to pull air out of the tent or other building upon which it is mounted.

A further object of the invention is to provide such a ventilator in the form of a tube of flexible material having rings of metal or the like at spaced points to hold the tube in diametrically extendedposition so that air currents may freely pass therethrough.

v 'A still further object is to provide a ventilator of this type with detachable means for holding the outer end portion of the flexible tube extended longitudinally.

Another object of the invention isto provide a ventilator such as above referred to, comprising a flexible tube having its outer end portion extended diametrically and longitudinally and the remaining portion extended diametrically only by a series of spaced rings so that it may collapse into the form of an elbow with the extended, outer end portion located in horizontal position.

Still another object is to provide such a ventilator in which the extended outer end portion of the tube will roll on the axis of the tube as it swings about a vertical axis.

A. further object is to provide a ventilator of this type in which the extended outer end of the tube rotates upon the ring at the inner end of said extended portion so as to prevent undue wear upon the fabric tube.

A still further object is to provide a simple, inexpensive and durable collapsible ventilator of the character referred to.

The above objects, together with others which will be apparent from the drawing and following description, or which may be later referred to, may be attained by constructing the improved ventilator in the manner illustrated, in which;

Figure 1 is a longitudinal, sectional view of the tubular ventilator in extended position, parts being shown in elevation;

Fig. 2 a side elevation of the ventilator in operative position;

Fig. 3 a plan view of the ventilator in the position shown in Fig. 2, and;

Fig. 4 a transverse sectional view, taken on the line 4-4, Fig. 1.

The improved ventilator comprises a flexible tube, indicated generally at Ill, which may be formed of canvas or other suitable fabric. The lower, or inner end ll of the tube is connected to a flanged collar l2, formed of sheet metal, or other suitable material, and adapted to be detachably or permanently connected to the roof portion of a tent or other structure to be ventilated, fitting over a suitable opening in the roof portion.

If desired, one or more hinged valves or dampers l3 may be mounted within the flanged collar l2 to control the flow of air through the ventilator, and a wire screen I4 is preferably provided upon the flanged collar to preventinsects from entering the structure through the ventilator.

A ring 15, of metal or the like, is located within the outer end l6 of the tube Ill to hold the same extended diametrically and a similar ring l5a is located within the tube at a point intermediate the ends thereof, these rings being sewed or otherwise attached to the flexible tube. Each of the rings l5 and l5a may be provided with 'a plurality of radial spokes I! connected at their inner ends to a centrally located cup 18.

The outer portion of the tube, between the rings l5 and l5a, indicated generally at l9, may be extended longitudinally by inserting opposite ends of a rod or bar into the cups l8. Preferably a telescoping rod is provided such as shown in Fig. 1 comprising the metal tube 20 having a rod 20a slidably located therein and normally urged outward by means of the spring 2i so as to hold the outer end portion [9 of the tube II] in lon'gl tudinally extended position. a

A ring 22, of metal or the like, is located around and connected to the outside of the flexible tube ill at the inner end of the extended portion 9 thereof, and adjacent to the inner ring [5a and one or more similar rings 23 may be located around and connected to the tube between the ring 22 and the flanged collar l2.

When the flanged collar I2 is attached to the roof of a tent or other building to be ventilated, the ventilator will assume the position shown in Figs. 2 and 3, the portion of the tube l0 between the ring 22 and the flanged collar l2 collapsing on one side so that this portion of the tube l0 assumes the general shape of an elbow.

The outer, longitudinally extended portion IQ of the tube extending outward from the flanged collar in horizontal position as shown in Figs. 2

and 3, the ring 22 resting in vertical position upon the flanged collar I2.

The wind will swing the extended portion 19 of the tube around the flanged collar I2 pointing away from the wind, and as the wind changes direction the ring 22 will rotate upon the collar I! in the manner of a hoop or wheel, the extended portion user the tube rolling on the axis of the tube as. it swings around the vertical axis from one radial position. to another. As. the, ex;- tended outer end portion of the tube swings about the vertical axis the metal ring 22 at the inner end. of the extended portion rides upon the metal flanged collar l2 so that the wear of the swin ing and rotation is carried by these two metal parts thus preventing undue wearupon-tlie fab ric tube. Furthermore it will; be seen. that the. inclined rings 23 also ride upon the flanged collar I2 so that there is no wear upon tho-fabric of the tube.

"Othenwise the; action of; the: improved ventilator will be the same as the actionl of the:- conventional rotatable; ventilator and: as theextend ed portion: 129 thereof always points. away from the Wind: a suctionv will be created: drawing air tram. the tent. or, other building: to: be: ventilated; outthrougrnthe ventilator- 'Ilhe ventilator will: also; serveas a chimney, cleaning the: atmosphere within the building of smoke caused by: an openfire within the buildins:

When it is desired to collapse the ventilator for shipping: or? storage the telescoping, rodis removed: from engagement with the cups t8. of the rings. t5 and its and' the entire tube may-be collapsed in: the: manner 5' an accordion so;- that iEWiHlDGGYlPX-Ea minimum: ofspace;

I claim:

1. A ventilator comprising a flexible tube, a .borizontall collar attachedito. one end or the. tube {on attachmentvto the roof: portion ct a building, means; for extending: the outer end: portion of the tube; diametrically and: longitudinally, and spacedmings; between said: longitudinally. extended. portion; and the collar. for extending. the. remaining portion ot: the tube diametrically only, soithatiit-mayi collapse; on, one side to assume an elbow shapezwithithelongitudinally extendedpcn tion locatedzin. horizontal. position whereby when the tube is causedlto swing about itslvertical axis the: extended. outer. end: portion" of. the: tube. will roll; ontlre axis. of said extendedouter end porthem and. saidspaced rings, will roll upon the col.- Ian.

2 A. ventilator comprising; a flexiblev tube, a horizontal collar attached tonneend oi thetube for. attaclnnent. to the; roof portion 0t. av building, means for extending the. outer-endpoittion. of the tube diametrically and, detachable means. for extending: said outer endportion.longitudinally. and spaced. rings. between said longitudinally extendedportion. and, the collar for extending the. re.- maining portion of the. tube. diametrically only, so. that. it, may collapse onone side to. assume, an elbow shape With;- the:longitudinallyextended portionlocated. inhorizontal position, whereby when the tube is caused to swing about its vertical axis the extended outer end portion of the tube will roll on the axis of said extended outer end portion and said spaced rings will roll upon the collar.

3. A ventilator comprising a flexible tube, a horizontal collar attached to one end of the tube for attachment to the roof portion of a building, spaced rings for extending the outer end portion of the: tube diametrically and a. detachable rod between and engaging said rings for extending said outer end portion longitudinally, and spaced rings between said longitudinally extended portiers and the collar for extending the remaining portion of the tube diametrically only, so that it may collapse on one side to assume an elbow shape with the, longtiudinally extended portion located in horizontal position, whereby when the tube is caused to swing about its vertical axis the ex tended outer end portion of the tube will roll on the. axis-0t. said extended. outer end. portion and said; spaced; rings will. roll: upon. the collar.

4 A-. ventilator. comprising a. flexible tube, a horizontal collar attached to oneend of thetube for attachment. to the roof portionv of. a. building, spaced. rings for. extending the outer end portion. of, the. tube. diametrically and'a detach.- able, telescoping, rod' between said rings for extending said. outer end portion. longitudinally, and." spaced rings between said longtiudinally ex,- tended portion and. the collar for extending the remaining'porti'on of the. tube diametrically. only, so that it.mayco1l'apseon. one side to assume. an eibow'shape with the longitudinally extended portiorr located in horizontal position.

5. A ventilator comprising a flexible tube, a horizontal collar attached to one end of the tube for attachment to the roof portion of a building, a screen in said collar; means for extending the outer end portion of the tube diametrically and longitudinally, and spaced rings between said longitudinally extended portion and the collar for extending the remaining portionof the tube diametrically only, so that it may collapse on one sideito. assume an: elbow shape with the longi tudinally extended portion located in horizontal positiom, whereby when the tube is caused to swing about: its, vertical axis the extended outer end: portion of the tubewill roll on the axis of said. extended outer end? portion and said spaced rings-will noll'uporr the. collar.

HGWARD W. LITTLE.

REFERENCES; CITEE) The followingreferences are of record in the file of this patent.

UNITED STAUES PATENTS.

Number Name. Date 439;,494; Enrich Oct. 28, 1890 1,a8.6 ,916.; 1 .T.ovy Mar. 18', 1924 1,805,809 Day May 19, 1931 811,529 Barstow et al; June 23, 1931 L, 87.4.;57'3' Moore Aug. 30, 1932 2,293,316 Stebbins; Aug. 18,1942 

